/*
 ============================================================================
 Name        : comqthread.h
 Author      : Tymoteusz Blazejczyk (tymon_x) tymoteusz.blazejczyk.pl@gmail.com
 Version     : 0.1a
 Description : Serial Communication based on Qt Threads
 License     : BSD New

 Copyright (c) 2013, Tymoteusz Blazejczyk (tymoteusz.blazejczyk.pl@gmail.com)
 All rights reserved.

 Redistribution and use in source and binary forms, with or without modification,
 are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation and/or other
   materials provided with the distribution.
 * Neither the name of the tymon_x nor the names of its contributors may be used to endorse or
   promote products derived from this software without specific prior written permission.

 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ============================================================================
 */


#ifndef COMQTHREAD_H
#define COMQTHREAD_H

#include <QThread>
#include <QDebug>
#include <QString>
#include <QObject>
#include <QQueue>
#include <QMutex>
#include <QStringList>
#include <QLabel>

#include "com.h"

#define BUFFER_READ_MAX     10
#define CHAR_END_MESSAGE    '\n'

class ComQThread : public QThread
{
    Q_OBJECT
    public:
        explicit ComQThread();

        //Standard methods
        bool open(const char *CommID, const unsigned long Baud); //open port and start thread
        bool isOpen();      // port is open ?
        bool close();       //use closeRequest() !!! ( close() only if you get error)

        //Request to finish thread and close port
        void closeRequest();

        //TX FIFO
        void write(QString string); //push message to TX FIFO
        void writeClear();          //clear TX FIFO

        //RX FIFO
        QString read();     //pop message from RX FIFO, check with isEmpty() !!!
        void readClear();   //clear RX FIFO
        bool isEmpty();     //is RX FIFO empty ?

    private slots:
        void stop();

    signals:
        void closed();      //when finish thread and success close port
        void closedError(); //when finish thread and get error when close port

    private:
        Com                 *pPort;
        QMutex              *pMutex;
        QQueue<QString>     *pQueueWrite;
        QQueue<QString>     *pQueueRead;
        QObject             *pObject;

        void run();

        bool                stopRequest;
        bool                openPort;

        unsigned char       bufferString[BUFFER_READ_MAX];
        unsigned long int   numberOfBytesRead;
};
#endif
